Abstract:
In the extraction and analysis of a forensic evidence document of a digital forensic system using a smart device, the present invention provides the convenience of an investigation by collecting and analyzing digital evidences in a crime scene in real time by extracting document information by directly performing the forensic analysis of the evidence document below a reference capacity by dividing a file size in the smart device or performing a forensic analysis by transmitting the evidence document exceeding the reference capacity to a remote server.
Abstract:
The present invention provides a digital forensic analysis system for a vehicle including a forensic diagnosis device (FDD) which is connected to an OBD-II connector of a vehicle, receives diagnosis data related to vehicle information from a master ECU, and then identifies data which is meaningful to a digital forensic method; and a forensic analyzing server (FAS) which is connected to the FDD via a wireless network, receives the forensic data, which is identified from the diagnosis data using the FDD, and then analyzes the forensic data. Therefore, the digital forensic analysis system for a vehicle can acquire records of the operation of the vehicle on a real time basis by utilizing an OBD-II interface and can ensure the confidentiality and integrity of the acquired data by transmitting the data using encoded channels and MAC and storing the data.
Abstract:
1. 청구범위에 기재된 발명이 속한 기술 분야 DMB 서비스 장치 및 방법에 관한 것임. 2. 발명이 해결하려고 하는 기술적 과제 종래의 DMB 시스템과 역호환성을 유지하며 고전송효율로 고품질의 서비스를 제공할 수 있는 디지털 멀티미디어 방송 서비스 장치 및 그 방법을 제공함. 3. 발명의 해결방법의 요지 기본 계층 스트림 및 강화 계층 스트림을 그레이 코딩(gray coding)에 따라 부호화하여 소정 비트값을 할당하고 계층 심볼 매핑을 수행하여 송신하는 계층적 송신 수단을 포함함. 4. 발명의 중요한 용도 DMB 서비스 장치 및 방법에 이용됨. DMB, 계층 변조, 기본 계층, 강화 계층
Abstract:
PURPOSE: A forensic index method using distribution processing and a device thereof are provided to increase or decrease used resources corresponding to the amount of analyzed data, thereby implementing performance adjustment. CONSTITUTION: A division object data management unit(100) generates division object data by dividing indexing object data corresponding to division setting. A division index data generation unit(200) assigns the division object data to data processing units corresponding to the division setting. The division index data generation unit extracts an index by filtering the division object data. The division index data generation unit generates division index data including the index. An index database management unit(300) generates index database by merging the division index data. [Reference numerals] (100) Division object data management unit; (200) Division index data generation unit; (210,CC) Distribution storage unit; (230,DD) Filtering unit; (250,EE) Index extraction unit; (270,FF) Division index data generation unit; (300) Index database management unit; (AA) First data processing unit; (BB) n-th data processing unit
Abstract:
그래픽 프로세서를 이용한 패스워드 고속 탐색 장치가 개시된다. 패스워드 고속 탐색 장치는 암호화된 파일에서 패스워드 비교의 대상이 되는 데이터를 추출하고, 후보 패스워드들을 생성하는 중앙 처리 유닛; 및 추출된 패스워드 비교 대상 데이터와 생성된 후보 패스워드들을 파라미터로 하여 정당한 후보 패스워드를 탐색하는 그래픽 프로세서;를 포함한다. 이에 의해 사용자가 패스워드를 기억하지 못하거나 법 집행기관의 포렌식 수사과정에서 암호화된 문서를 복원하기 위해 필요한 패스워드를 고속을 찾을 수 있어 시간을 절약하게 된다.
Abstract:
PURPOSE: A method for analyzing and validating data which are collected through the internet and a system thereof are provided to generate an index database for a webpage that a user visits and web mail content and search online data in real time. CONSTITUTION: An online data forensic server(210) collects and analyzes usage history information from a target device for data collection. The online data forensic server downloads and collects data in the Internet based on the usage history information and requests and receives a timing check token for the collected data. A timing check token issuing server(220) issues a timing check token for the collected data and provides the timing check token to the online data forensic server.